3 years ago

John drove 871 miles in 13 hours.

Mathematics

1 answer:

QveST [7]3 years ago

8 0

Answer:

871/13=67 469/67 =7 so 7 hours

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Solve (x - 3)² = 5<br> Give your solutions correct to 3 significant figures.

zvonat [6]

Answer:

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Step-by-step explanation:

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3 years ago

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Write the standard form equation of the line through the given points. through (0.-4) and (-3,-2)

Alexxx [7]

Answer:

The standard form of equation of the line through the given points. through (0.-4) and (-3,-2) is $\frac{2}{3}x+y=-4$

Step-by-step explanation:

The standard form of equation is $Ax+By=C$

Finding slope

Using the given points (0,-4) and (-3,-2) we can find slope using formula: $Slope=\frac{y_2-y_1}{x_2-x_1}$

$Slope=\frac{-2-(-4)}{-3-(0)}\\Slope=\frac{-2+4}{-3} \\Slope=-\frac{2}{3}$

Finding y-intercept

Using point (0,4) and Slope=-2/3 we can find y-intercept

$y=mx+b\\-4=-\frac{2}{3}(0)+b\\-4=0+b\\b=-4$

The slope intercept form of the line through the given points. through (0.-4) and (-3,-2) having slope =-2/3 and b=-4 will be:

$y=mx+b\\y=-\frac{2}{3}x-4$

Now, standard form of equation will be: $\frac{2}{3}x+y=-4$

So, The standard form of equation of the line through the given points. through (0.-4) and (-3,-2) is $\frac{2}{3}x+y=-4$

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3 years ago

Need this done. will mark brainliest.

Luba_88 [7]

Answer:

i don't know because of the picture not showing.

Step-by-step explanation:

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antoniya [11.8K]

a = 46c....for c
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322 = 46c
322/46 = c
7 = c.....7 circuits are required

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KengaRu [80]

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